Hi Rene,
What is the best order of approach for bandwidth-percent for use with point-to-point interfaces?
My example is:
1 hub router with a 256kbps interface.
6 spoke routers, each having a 64kbps VC.
- When the hub router attempts to communicate with all spoke routers at the same time at full capacity = 64kbps X 6 = 360kbps.
360kbps is more than the 256kbps on our interface. Start with the hub router, divide the bandwidth of 256kbps by our 6 links to give us 42kbps per VC.
QUESTION: The 42kbps is way short of the 64kbps per link, before even considering EIGRP!
EIGRP will use up to 50% of the 42kbps - 21kbps.
We have a solution for ensuring that EIGRP utilises more of the VC, but what about when the link is under utilised even before considering the impact of EIGRP traffic?
Bit confused. I understand why we would need to set the hub bandwidth to 42kbps to avoid the 360kbps vs. 256kbps situation, but it massively under utilises the links?
I think I must be missing an obvious point somewhere.
Thanks.